📄 纸张尺寸对照表(A4 / B5 / 16开 / Letter)Paper Size Chart — A, B, C, Letter
查询 ISO A/B/C 系列、日本 JIS B、北美 Letter/Legal、国内正度/大度开本、照片 3R–10 寸、信封和名片的宽高,可切换毫米、厘米、英寸,并按 72/96/150/300/600 DPI 换算像素;输入任意尺寸可反查最接近的纸张规格。Widths and heights for ISO A/B/C, Japanese JIS B, North American Letter/Legal, Chinese book formats, photo prints, envelopes and cards — in mm, cm or inches, with pixel sizes at 72–600 DPI. Enter any size to find the closest standard.
按尺寸反查Find a size
ISO A/B/C 系列每一号都是上一号对折,长宽比恒为 √2:1;日本 JIS B 系列比 ISO B 略大(复印机上的 B5 一般是 JIS B5 182×257)。国内书刊“开本”以全张纸裁切,正度全张 787×1092 mm,大度全张 889×1194 mm,成品尺寸各印厂略有差异。像素数 = 毫米 ÷ 25.4 × DPI。Each ISO A/B/C size is the previous one folded in half, keeping a √2:1 ratio. Japanese JIS B sizes are slightly larger than ISO B (copier “B5” is usually JIS B5, 182×257). Chinese book formats (开本) are cut from full sheets of 787×1092 mm (正度) or 889×1194 mm (大度); finished sizes vary slightly by printer. Pixels = mm ÷ 25.4 × DPI.
使用说明与常见问题How-to & FAQ
「纸张尺寸对照表(A4 / B5 / 16开 / Letter)」是什么?What is the Paper Size Chart — A, B, C, Letter?
查询 ISO A/B/C 系列、日本 JIS B、北美 Letter/Legal、国内正度/大度开本、照片 3R–10 寸、信封和名片的宽高,可切换毫米、厘米、英寸,并按 72/96/150/300/600 DPI 换算像素;输入任意尺寸可反查最接近的纸张规格。Widths and heights for ISO A/B/C, Japanese JIS B, North American Letter/Legal, Chinese book formats, photo prints, envelopes and cards — in mm, cm or inches, with pixel sizes at 72–600 DPI. Enter any size to find the closest standard.
如何使用「纸张尺寸对照表(A4 / B5 / 16开 / Letter)」?How do I use the Paper Size Chart — A, B, C, Letter?
在搜索框输入纸张名称,或用系列筛选;切换单位和 DPI 后表格立即更新。做海报、印刷文件时用 300 DPI 的像素尺寸。Search by name or filter by series; units and DPI update the table instantly. Use the 300 DPI pixel size for print artwork.
A4 纸多大?How big is A4?
A4 是 210 × 297 毫米(约 8.27 × 11.69 英寸),300 DPI 下为 2480 × 3508 像素。210 × 297 mm (about 8.27 × 11.69 in) — 2480 × 3508 px at 300 DPI.
16 开是多大?How big is 16-kai?
正度 16 开约 185 × 260 毫米,大度 16 开约 210 × 285 毫米,各印厂成品尺寸略有差异。Standard 16-kai is about 185 × 260 mm and large 16-kai about 210 × 285 mm; printers vary slightly.
「纸张尺寸对照表(A4 / B5 / 16开 / Letter)」免费吗?文件会上传吗?Is the Paper Size Chart — A, B, C, Letter free? Are my files uploaded?
「纸张尺寸对照表(A4 / B5 / 16开 / Letter)」完全免费,无需注册。你输入的内容只在本机浏览器里处理(部分设置会保存在本机方便下次使用),不会上传到任何服务器。The Paper Size Chart — A, B, C, Letter is free with no sign-up. What you enter is processed only in this browser (some settings are kept locally for next time) and is never uploaded.